Added Kimai-Object, should represent the Kimai-Application with all its
Data
Added Kimai::getProjects, so you can get all Projects
without accessing the Database-Class. The Project-List will just load
once, than it is cached
Added Kimai::getCustomers, so you can get all Customers without
accessing the Database-Class. The Customer-List will just load once,
than it is cached.
Kimai_Database_Mysql::getProjects will return full-initialized
Project-Instances, there where a casting-error